He occupies a place in Labour legend. He spoke at the 1945 Labour conference. In 2013 Denis Healey made his conference return - singing lewd songs at a stand-up event somewhere in a backstreet in Brighton.

Yes, the Intercontinental London Westminster is not an obvious art venue. Yet its art curator, Peter Millard, has assembled a collection of provocative works which, taken together, capture the essence of British political life.